Alistair's Create Dark Servant

This spell creates a Dark Servant under the permanent control of the caster. The Dark Servant is sentient and shares the alignment of the caster, as well a high level spell caster. The Dark Servant is loyal to it's creator, and will use everything in it's power to protect it's creator, expand his power and influence and wealth no matter the cost.

The Dark Servant acts on it's own turn, and is controlled by the Dungeon Master, but tries it's best to follow it's creator's orders. It's personality and sex, chosen by the Dark Servant itself upon it's creation, are to please and make it's creator servant, with the guidelines coming from it's alignment. Although Dark Servants that share alignments can have similar personalities, they are not the same. Chaotic aligned Dark Servants may even be obsessed with teir creators.

If released from servitude, the Dark Servants wiil continue to be loyal to it's creator, as well maintaining the wish to expand his or hers influence, power and wealth. However, their priority will always be their safety and protection, therefore they tend to follow and guard their creators  until ordered to do something else. If the Dark Servant is chaotically aligned, they might try to kidnap their own creators and put them in a safe place. If so, the Dark Servant will look for a secure, comfortable, isolated place to their creator's taste.

If they have subordinates, they might start to collect things to satisfy the Dark Servant's creator, such as wealth, food and if the master is fine with it, slaves. Any shadows created by this monster can be used as material for spells.